- Getting Started
- Before You Begin
- How To
- Build Your First App
- Build a Mobile-friendly App
- Embed Apps
- Embed Maps
- Include Excel Charts in Apps
- Include MailTo Links
- Include Star Ratings
- Use Count With Choice Set Values
- Use Document Viewer
- Use Master Detail View
- Use Selected Values From a Table
- Set External Context
- Work With Data Source and Value Bind
- General User Experience Guidelines
- Use the Send Interim Result Activity
- Notifications
- Designing your App
- Events and Rules
- Rule: If-Then-Else
- Rule: Open a Page
- Rule: Open URL
- Rule: Close Pop-Over/Bottom Sheet
- Rule: Show Message
- Rule: Show/Hide Spinner
- Rule: Set Values
- Rule: Start Process
- Rule: Upload File to Storage Bucket
- Rule: Get File From Storage Bucket
- Rule: Reset Values
- Rule: Create/Update Entity Record
- Rule: Delete Entity Record
- Rule: Add to Queue
- Function: And, Or, Not
- Function: Concat
- Function: Contains
- Function: Count
- Function: EndsWith
- Function: If
- Function: IsBlank
- Function: Guid
- Function: Length
- Function: List
- Function: StartsWith
- Function: Sum
- Function: Sort
- Function: Now
- Function: Today
- Function: Time
- Function: Year
- Function: Month
- Function: Day
- Function: Hour
- Function: Minute
- Function: New
- Function: Lookup
- Function: Filter
- Leveraging RPA in your App
- Leveraging Entities in Your App
- Leveraging Queues in Your App
- Application Lifecycle Management (ALM)
- Basic Troubleshooting Guide
About Expressions
Expressions are comprised of several operations allowing you to transform, modify, and compute the data within an app in order to return an output result. Expressions can be used in several scenarios, such as:
- Bind to variables, process output, and other control values from the resources panel.
- Concatenate strings using the
&symbol. - Perform comparative operations.
- Create logical operators within comparative operations.
- Set control values through the
Iffunction added to comparative operations. - Perform arithmetic operations with the help of expressions.
- Declare static data such as "String", true/false, 123, etc or static lists of primitives such as a list of strings.
- Control hidden, disabled, font/background color properties.
- Reference a selected record or field on a record from another control.
The following operations can be used when configuring expressions:
- Functions
- Named Operators
You can check all the functions currently available for Apps in the About Functions section.
In addition to functions, Apps expressions also supports mathematical and conditional operators. For supported operators, see the table below.
|
Category |
Operator |
|---|---|
|
Additive expression |
+, - |
|
Atomic expression |
(), Literal, Variable, Functions
|
|
Comparison expression |
<, <=, >, >=, in |
|
Concatenation expression |
|
|
Equality expression |
==, != |
|
Exponentiation expression |
|
|
Logical expression |
&&, and, AND, | |, or, OR |
|
Multiplicative expression |
*, /, % |
|
Unary expression |
!, not, NOT, unary +, unary - |
Expressions can be used for the following:
- Controls
- Rules
Expressions are enabled for hidden and disabled properties for the following controls and their display values:
- Button - Text (icon not supported)
- Checkbox - Label, Checked
- DatePicker - Hint Text
- Dropdown - Hint Text, Default Selected
- Switch - Label, On
- Text Area - Default Text, Hint Text
- Textbox - Default Text, Hint Text
- Label - Text
- Header - Text
-
Image - URL
Rules are used to enable conditional logic. You can use expressions on the following rules:
- If - Compare, Group
- Open URL - URL
- Show Message - Title, Message
- Show/hide spinner - Message
- Start process - Input override
-
Set Value - Value
